Chart 1. The incidence of poverty in LDCs grouped according to export specialization,
1981-1983, 1987-1989 and 1997-1999
(Share of total population living on less than $1 a day)

Source: UNCTAD, The Least Developed Countries Report 2002.
Note: LDCs are classified according to their export composition in the late 1990s.

Chart 2. Trends in the income gap between the world´s 20 richest countries
and LDCs, 1960-1999

Source: UNCTAD, The Least Developed Countries Report 2002.
Note: The income gap is the ratio of the average GDP per capita (in 1985 dollars adjusted for purchasing power) in the world´s 20 richest countries to that in the LDCs and LDC subgroups. The sample of the world´s 20 richest countries varies over time. The averages are weighted by population.

Chart 3. LDCs´ share in world exports of goods and services, 1980-1999